Three-Dimensional Color/Power Doppler Sonography and HD live Silhouette Mode for Diagnosis of Molar Pregnancy.

We present our experience of using new 3-dimensional color/power Doppler sonography (HDliveFlow; GE Healthcare Japan, Tokyo, Japan) with the HD live silhouette mode for diagnosing complete molar pregnancy in the first trimester and differentiating it from missed abortion with hydropic degeneration. In the case of a complete mole, color Doppler sonography showed numerous vesicles without blood vessels, whereas HDliveFlow with the HD live silhouette mode clearly depicted these vesicles forming a mass with the clear demarcation of its edges and showed no blood flow inside the mass. In contrast to the hydropic abortion, which appeared as some vesicles with many blood vessels around them on color Doppler sonography, HDliveFlow with the HD live silhouette mode showed some vesicles embedded within the abundant blood vessels. The spatial relationship between the vesicles and surrounding highly vascularized uterus could be shown on HDliveFlow with the HD live silhouette mode. This technique might be beneficial as an additional diagnostic tool along with conventional color/power Doppler sonography, and it facilitates the early discrimination of these cases in the first trimester of pregnancy.